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GB/T 31392-2022 Chinese PDF (GB/T31392-2022)GB T 31392 2022_Chinese: Technical guidance for the utilization of coal mine water (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31392 2022
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GB/T 31392-2022_Chinese: Technical guidance for the utilization of coal mine water (Chinese: 煤矿矿井水利用技术导则)
Note/Careful: Text of PDF is in Chinese (not English).
Delivery (PDF in Chinese): 2 working-hours typically, ASAP
English versions: GB/T 31392-2022
Note/Careful: Text of PDF is in Chinese (not English).
Delivery (PDF in Chinese): 2 working-hours typically, ASAP
English versions: GB/T 31392-2022
GB/T 31392-2022 Chinese PDF (GB/T31392-2022)
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